Bracket for mounting antenna masts



April 6, 1948. J. w. SHUR 2,

BRACKET FOR MOUNTING ANTENNA MASTS I Filed April 21, 1945 INVENTOR iJOHN Mao/v mm BY 7DWQ4/9W,/WW- 7m ATTORN EYS Patented Apr. 6,

1 jMyiinventldn relates'to impndvements inz-deviees fer nibuntingantenna ina'sts, and more particularly'tdan improved device which maybeused for mounting radio antennas, 'r fr 'ieceiving =01- sending apinaratus,'dn rbofs.

This applicat'i n is i'a continuation-impart of my "p endirig"application S'eri'al No. 568,319,, :filed December '15, 1944, for*Antenhaimounting', and the :pfesent invention is an imprdvement on theantenna nlouritiflg devie'e 'described and claimed m ssed appl cation. ta

The antenna mc iunfting" discldse'd in saidiariplicatidn cdrnp'fise's "ametal nlatform adapted ato 'be inoaufited -r 1 fa horizontal isbsitionion "a suitable sjififvdr t preferabty "on the ridge iof ia roof. The='rrio 1nting i cludes "a veftical memberifor heldiri'g anantenna'ma'stfsuehas a' pipe10r tubu- 1'ar; in' efriber, attached to theupner surfaee-of the iilttfbrih, ahtl' bta'ce's fattacheii to 'bpp'ositeedges of the --pla'tfbrm by a, pi-vdt'ed iconnelctionxand adapted tqfbe'atltaeh'ed to'the slopifig sid'es' df the rbb'f, regardless df theangle, to hbldl-the platfprm in holizp'ntal position. Ina particularform of the mounting, the hraces "are relatively ldhg lihk's hihged tot'Wh diagdn'al ly opp'osite comers of the 'filatfdrfn and each brace isprovided with a hihged leafjbr plate ior Se'eurihg th'egen'd f theh'face to any surface, suc'has the sloping :surfacef'df a 'roqf.

done of the p'rdplerns iin v' ollvecl in the eonstruc tidn dfantennmgounting evices-of :tnetype ra seldsed in th jalhove-r'nefitienedapplication, is "the means fb'r prdvidinjgjthe hinged or pivoted tom-tsbetw en the platform and thetie-mil or link, and between the projectingend of the link (and the anchor plate for anehdrifig the px ojectingefig'i 0f the link to the reef "6r dth-er supporting amete Thenlges'entint entidn nrbvi'des a novel mo nting devfiee in whichinterchangeable means isprovid jd f r fdfmi'hg both (if the hingedjoints ofthe-deviee. l I

ficdfd'ing to a pre erred fdr n l o'f icerrsthiietion,

fii'ans iheludes afs h'e'et metal anther memhei =havir'1g a pivoteqnnectidn adapted to the titrated it either em; o'f'the nnk and abearing s e'etion Dtd {to be attached tq a =c0rner. .iOf the platf'er nbr t the surface of the shpbolting structure ch as-th s10pifig surfaceof a roof. The idn or a pivoting eonn'eetion member bf this type notonly: facilitates the manufacture of the device, but also provides anantenna mast lnountin'g device which has versatile features ofconstruction permitting 'df neadyrassemhly andinstallatidn. s In oneform- 6f the invention the improved antenna mountin tdevice ;thre .o rel campuses a substantially fiat relatively Ima y meLaI plat; f member.anrle erablyre e tan ularw-r. square haped, an. upri ht. m ans atta h d..:to..v.a d.l ex.- tendiri-g trqm .the mine; surface 50f the ma fqrmmei'nkie'r for, hfQlding an antenna mash/a slink pivotally connectedtoi'achjofytwq opposite; edges or .diaeoniallyiohpfosite corners bfethefln at prm r fe'mb fit elinks bein adapted,- to .extenclpumo thesloping sides .Qf, a roof .oltibthepsttflctllli member, and an anhor;HfeaIlSvD YOtalIVQ W fi t ti to at :leesit oneiend of each. of.said.;-1in.ks anclxadapted tohe-attachegl tmthe :mefor struer turalmemberer the platforminembentheanchor meah's 'eqmpfiising a .z-flatsheet metal ;web having a pair "of zlntegral wens extending; there romand provifling alpair o f TeafS towhichjajn end of 1a link-'isattached'hy a:pivotconnection.4 t

InJa fnore specificsense, the improved anchor m'irlberiedmprises a flatright triangulateshapeq sheet metal, lw'eb,fa reinforcing web. integralwith said "triangular-shaped web and extending n91;- mal thereto fromeach iofthe equal edges pf said triahgulawshapd fweb,. the ears. beingintegral with the reinforcing webs adjacent the apexpf thetriangular-shapedfweb. andiextending in, arallel spaced relation.to..each jotheruheyqndwthe tfi iangular-shapedweb and'at'an angleof'about to it'srlengzedge. l r. .t e, H ,e

ain'bther fbrm of l the invention the antenna mounting rcc'impriises arelatively large fiat qmetal filatfonm dapted torstupbnia supportingstrucwe, an.rupr-ightl member attached to and 46X- tend irfg f-ro'm theupper surface of. the.v platfqrm to; holding anante'nna 'r'nastga linkpivbta1'ly;connested to each iof .ltwo. cippsite edges of, thiesplattermand being of eat-usable length for levelin the @Tatfdrm, these'linkstbeing of such a, length that they arealap'teduto extend out tothe slopin side's of a r der or other structurefland an an: dr er memberconnected to the extending; ends 0f the links having'a surface adapted.ftegjli'e fiatkonua slqpjmg reef surface and 126 be fastened "thereto.Aceeramg th afiother' feature 0f thefinvention, the 'mproved antehnamountingpflevice lofsthe prgsent if entipn includes adjustablehlinktmemf bers Whie are aHaZStGWtO-iaci'Iifiate inte'il'lfittiofmi thedeviee andu'increas the accuracy jqf leyeling the platform. l Theadjustahlelink e mfimbersfl rtthermdne:prbvi'desjrheansby Whichthe finalleyel; ine op.emtion...max be lqu k-ck i aedseafiily aq qhg plished:after the dw qe hae. be n, red to the rbdfior other ;mounting;styyetule. y Otherr features and. adean ag s 't tei'antenne mast mountingdeviceof the presentmvention are included in the following description inwhich the stnucture and arrangement of preferred forms of the device aredescribed more in detail in connection with the accompanying drawingsforming a part of this application.

In the drawings:

Fig. 1 is a perspective view showing a preferred form of an antenna mastmounting device con- 'structed in accordance with the features of thepresent invention and illustrated in connection with its installation onthe ridge of a roof.

Fig. 2 is an enlarged plan view of the hinge or pivot anchor attachmentmember shown in Fi 1.

Fig. 3 is a side View of the hinge anchor attachment member shown inFig. 2.

Fig. 4 is a broken perspective view similar to that of Fig. 1 showing amodified form of link and arrangement.

Fig. 5 is a broken perspective view similar to that of Fig. 4, showing afurther modified form of link and assembly.

Referring to'Fig. 1 of -the drawings, the improved antenna mountingdevice of the present invention is illustrated in'c-onnection with itsuse on the ridge of a roof In for supporting and holding an antennamast. The device includes a square base or platform l2 which is attachedto the ridge of the roof by means of screWsl4 which extend along adiagonal of the platform l2. In the position shown, the platform 12 ismounted so that one diagonal is in line with the ridge of the roof,while two opposite corners extend over the respective sloping sides ofthe roof. The screws l4 serve to initially position the platform on theroof so that the weight of the mast and antenna will be carried directlyby the roof.

The platform [2 may, as an example, be from five to ten inches square,-and made of metal approximately one-quarter inch thick. The entiremounting device is preferably made of relatively heavy weather-resistantmetal plate.

or cast metal, such as Duralumin, aluminum bronze, steel, iron or othersuitable metal. Certain of these metals which may corrode, may be platedor painted if desired.

The corners of the platform l2 which project over the sloping surfacesof the roof, are each provided with a sheet metal anchor member it whichmay be riveted by rivets H, or welded to the corners of the platform inthe position shown. A relatively long link or bar l8 having a hole neareach end is pivoted at: one end to each of the anchor members It bymeans of a bolt 28, while the opposite end of each bar is similarlypivoted by a bolt 22 to an anchor plate or member 24- made exactly likethe members 16. The bar l8 on each side of the ridge of the roof extendsdownwardly to the sloping surface of the roof, and the anchor plates ormembers 24 are attached to the sloping surface of the roof under aslight tension by means of screws 26.

The antenna mounting device of the present invention is erected on theridge of the roofby initially securing screws [4, while the bars I 8 andanchor members 24 extend down to the sloping surface of the roof ontheir respective sides. The platform [2 is then leveled crosswise of theridge, and the anchor plates 24 are then secured to the sloping sides ofthe roof, with their fiat sides down, by means of the screws 26. Themounting device is adapted to fit any roof slope because of the freepivots on the bolts 28 and 22 which permit the links or'bars [8 toextenddown to the sloping roof surface, and the members 24 to lie flaton such surface and provide a strong anchor for maintaining the platformin horizontal position.

An important feature of the present invention is the provision of themembers l6 and 24 which are of the same construction and which aretherefore interchangeable in the manufacture of the device. The detailedstructure of these anchor members is shown in Figs. 2 and 3, in whicheach member is shown as being made from a single piece of sheet metalwhich is relatively thin compared to the thickness of the platform l2and the bars l8. As illustrated, each anchor comprises atriangular-shaped web 28 both surfaces of which are flat, the insidesurface being adapted to fit over the corners of the platform I2 whilethe outside surface is adapted to fit on the fiat surface of a mountingstructure such as the sloping surface of the roof Ill. The two equaledges of the web member 28 are each connected integrally with aflange-like reinforcing web 38 which is at right angle tothe web; 28,and which terminates in an ear or lug 32'provided with a hole 34 forreceiving bolts '28 and 22.

As shown in Fig. 2, the ears 32 are spaced from each other .a distanceequal to'the thickness of the bars l8, and extend at right angles :tothe opposite edge of the triangular-shaped web 28. The webs. 38 of eachanchor member extend at right angles to each other so that they exactlyfit along the edges forming a corner of the square platform l2. Each ofthe webs 38 tapers from the ear 32 to the right hand edge of the web 28.Holes 38 are provided in the web section 28 for receiving rivets H orscrews 26; If the members I6 are welded to the platform 12-, the holesmay be used as anchoring points for the welds;

The anchor members 16 and 24 may be cut and pressedfrom fiat sheet, ahole preferably being punched at the juncture of the web 28 and the ears32 to facilitate later bending of the ear and web sections 32 and 38into position. The curved edges of such a hole are shown at 31. j

The antenna mounting device of the present invention is particularlysuited for the mounting of antenna masts such as are suitably employedfor supporting television and frequency modulation antennas. Theplatform I2 thereforeis provided with a mast holding member which,in theform illustrated, comprises a vertical section of pipe 38 which iswelded or otherwise attached to the center of the platform 12 and whichmay extend substantially above the platform to receive an antenna mast48. The mast 48 is held in any desired orientation in the pipe 38 bymeans of a set screw, 42. u

A relatively large platform I 2 is preferably provided so that thesections extending along the ridge of the roof on each side of the'mastholder 38 aid in preventing the tipping of the mast in the direction ofthe ridge of the roof. The platform I2 is relatively large for thefurther reason that the extending opposite diagonal corners shouldextend substantially over the sloping sides of the roof to provide asteady anchoring piece for the attachment of the anchors l6 and thelinks l8. The links 18 may be relatively long so that they extenda'considerable distance down the slope of the roof. The angle betweenthe platform and the links I8 is preferably'greater than but this angleof course will vary Somewhat, depending upon the slope of the'roof. If

desired, th members '24 may be attached to wooden cross pieces, which inturn are attached to two adjacent rafters of the roof. 1

masses:

v t the -b racket 50 is attached to ach sid of the-i-oof "atapproxiinate'ly the iiiieet 6n; an thereafter the 'iit 18- 01 oiipesltesides of thereof are dx' aitm up to deVel 'the platform 'lz' an'd hold'it under a sliht' -tens'ien on the ridge of the roof.

A further modified arrangement of the mounting device ef the' bresentinvention isshownin Fig; 5 in Which aJ platforimM similar to theplatform l2 is mdunted on-the ridge of a roof 56 in a mariner siinilafto--that showtiinFig: 1. The platform 54 is a square or rectangularshaped platform in "which 1 two diagonally opposite corners project overthe sloping surfaces or the roof, while the other corners are-mounted onthe ridge of thereof. -scrws sa sjerve'to' position the platform on theridge.

The projecting diagonalc'oinersof the platfor m 54 are "each "previdedwith a hole through which a li-nk or rod 60 extends, the end of the rodbeing threaded-and "prbvidedfwith a Wingnut 62 which may have a'spherical baseadapted to fit into' a countersunk "secti'omof" the holein the corner of thefplatform 54. y Eachofthe' projecting' corners ofthe "plummet are provided with a hole of the typereferr'ed t0,'"w hich,'howevenis substantial-ly lairger"than the i'od'fifl; so as to perhiit asubstantial bivoting action, so that the rod may take a substantialswing. The" opposite end of the rod" 6!! includes a; hook 64 so that thered is bfsu stapuan the"salmefeonstruction' as the ree 'in Fig.'5,*howevr;the'fhooli 64 extends throughthe hdle's in the earsofan'anchor member 66 which has the construction shown in Fleet-tea.rhe'nrikser i ods 44.150 or IB'may be'niade' of adjustable length"bylncluding a turnbuckle.

The antenna mounting deviceshotvn in Fig. 5 is e'retedin" a'mannersimilar to "that'idescfibd in'Fig.4,"by' firstattachihg theser'e'ws 58,after which the nuts BZ'areeXtendedLthe anchor members 66 set inplacefibyf' means of 's'crews68, the platform thenbeingffinallyi'ev'eled and'tensioned down bydrawmg-up thewlngnuts 62.

The'antenna mountingdevice provided by the present invention may beerected on various types' of buildings andfsupporting" structures inother Ways, than th'ose illustrated by the "drawin'gs; which illustratethe versatility of the bracket andthe' fa'ct-that it can ne installedWith considerable ease "on almost any roof 'or' structure Where themounting of an antenna maybe desirable, Furthermore; a permanent andri'gid construction is provided which is easy to install and keep inproper conditiom and whi'ch is adapted to supportand orienta'complexantenna of the type referred 120 aJbOVE. the "tiitlllflafmastis 'notround it inay be readfly himed -td -fit the fetent rpm of'lioldeftram-that fif' th -cinemas be attache to-the murmur esired. A pipemesema fiteverer inside the pipe-section as.

- From a manufacturin standpoint, the antenna mounting device of -thepresent invention presents "no problem, but" is s'imiilified because Ofthe 'interchan eability 6r parts and-the use "of a *common -anchor'mernber er novel design, 1 as described above. The bars i8-m'ay*=be"made of standard stock andthe' "same is true-of the rods44*and6l]. Instead 6f using the flat 'bars aflihks may beprovided-similar to 'the rods end so which "have hooks or eyes at both=riiis for pivotingto theanch'or i'ne'mbers l6f' and 2fl. "Such a rodhavinghooks- 'rnay' nbt only =hoo'kinto an anchor 'lnember' of th 6f 16,24, GEQ butalso be hooked intothe-anchor hole in the corner 'of theplatformifi instead Musing-the wing nut construction. Similarly; a rodhaving-a hookon each end (at**to each other) m'ay be' used-in thearrangemeht s'hewn --in'ZEig. 4} --'by hooking one end in the hole the-bi*acketf-50, ef'by usingthe anchor member 24 in place-of theanchorb'r-acket 5!). Anchor members 16, 24 and- B5 maybe-used inconnection with a rectangular shaped: platform member mounted in themanner shown in applicants pending-application, 'sensi m: 586,- 547,filed. April 4, 1945. The anchor members It may be secured to the under''sldebf the pla tform, butthe hood iike a-rfar'igement Over-the cornersprovides a strcngand wll braced anchorage. Y variousmodifications andchanges indicated above are *contemiilat'ed as ooming -iiiithiin thespiritand scope er the mien-10m as definecl by the'appended claims.

'What is claimed; as'new is:

1. Anant'enna mounting *de-vic'e -adapted to supportan antenna on theridge ofa building roof, comprising a rigid substantiallysquaresh'apedplat'form= member mam-ewe -rest horizo'ntally on said ridgewitha diagonal'ther'eofin line with the ridge, an upright --inastholding member attached to and extendingf-toni the-up per surface ofsaid platform member'edapted to hold"anantenna"mast, an anchor-memberattached to each of the two corners of saidfiltttform at the sides'ofsaid ridgeflsaid'anch'or-member inchidinga pair-bf projectingfiugs; ametal IinltwpiVOted to; the lugs' of ea'ch anchormember andextendingdown to the sloping sides-of the root-and a secondanchor-member connected-t0 theio'wer end "ofcach link for attachingthe-device to the roof, said second-anchormember havinga flat side'facing'the roof andadapted to-be attached in a"fiatpositiononmthesloiiing roof surfaces.

'2. An antenna mounting 'deviceadapted to support'anfantenna ontherid'ge of a building roof; comprising a rigid substantiallysquareshaped platform"'member-adapted to rest hori- "zontally onsaidridgewitha diagonal'thereofin line with" the ridgegan 'upright'ma'st holding member attached to and extending frofm *the'upper surfaceof saidplatformmember adapted to hold an antenna ina'st," ananchorm'en'lber'at tanned to'each ofthetwo corners of said platformatthe sides of said ridge,-said*anchor"member including atriangular=shapedweb attached to the platform and' a"pairof"projecting"lugs; ametallink pivoted between thelugsofeach anchormember and extending dowrft'o the' slopingsides of the roof; and asecond'anchor member pivoted to theiower" end-of each link tor-attaching the device to theroof, said second anchor" member having'-aetruc'ture' similar to said first mentioned anchor member and adaptedto be attached in a fiat position onto the sloping roof surfaces.

3. An antenna mounting device adapted to support an antenna on the ridgeof a building roof, comprising a rigid substantially square-shapedplatform member adapted to rest horizontally on said'ridge with adiagonal thereof in line with the ridge, an upright mast holding memberattached to and extending from theupper surface of said platform memberadapted to hold an antenna mast, an anchor member attached to each ofthe two corners of said platform at the sides of said ridge, said anchormember including a at ri ul r-shaped web section fitting the corner ofsaid platform and side web sections terminating in a pair of projectinglugs, a metal link pivoted to the lugs of each anchor member andextending downto the sloping sides of the roof, and means for anchoringthe extending ends of said links to the sloping roof surfaces.

4. An antenna mounting device for mountin an antenna on the roofs ofbuildings and other structures, comprising a horizontal relatively heavymetal platform, an upright member attached to and extending from theupper surface of the platform for holding an antenna mast, an anchormember ofrelatively thin sheet metal attached to two opposite edges ofthe platform, each anchor member including a pair of lugs projectingaway from the platform and providing a hinge attachment means, a bracearm hinged to eachof said pairs of lugs onthe opposite edges of theplatform, said arms being adapted to extend out to the sloping sides ofthe roof or other structure, and an anchor member hinged to eachof theprojecting ends of said arms and having a surface to lie fiat on a roofsurface regardless of its slope and to be fastened thereto,

'5. An antenna mounting device for mounting an antenna on the roofs ofbuildings and other structures, comprising a horizontalrectangularshaped relatively heavy metal platform, an upright memberattached to and extending from the upper surface of the platform forholding an antenna mast, an anchor member of relatively thin sheet metalattached to each of two diagonally opposite corners of the platform,each anchor member including a hood-like body extending oversaidco'rnersand a pair of lugs projecting away from the body of theanchor member and providing a hinged attachment means, a brace armhinged to each of said pairs of lugs on the diagonally opposite cornersof the platform, said arms being adapted to extend out-to the slopingsides of the roof or other structure, and an anchor member flexiblyconnected to each of the projecting ends of said arms and having asurface to lie fiat on a roof surface regardless of its slope and to befastened thereto.

6. In an antenna mounting device for mounting an antenna on the roofs ofbuildings and other structures, including a horizontal metal platformplate, an upright member attached to and extending from the uppersurface of the platform for holding an antenna mast, a brace arm pivotedto each of two opposite edges of the platform, said arms being adaptedtoextend out to the sloping sides of the roof or other structure, and ananchor member connected to eachof the projecting ends of said arms andhaving a surface adapted to lie fiat on a roof surface regardless of itsslope and'to be fastened thereto, an improved anchoring means ilorpivoting said brace arms to the platform comprising a sheet metal webattached to the platform, integral webs extending from-said web andproviding a pair of ears-to which a brace arm is pivoted.

'7. In an antenna mounting device for mount ing an antenna on thesurface of buildings and other structures, including a substantiallysquare-shaped fiat; metal platform, an upright member attached to andextending from the upper surface of the platform for holding an antennamast, a link pivotally connected toeach of two diagonallyoppositecorners of the platform, said links being adapted to extend out to thesloping sides: of the roof or other structure, an anchor memberconnected to each'of the projectingends of said links and having asurface adapted to lie flat on the roof surface regardless of its slopeand to be fastened thereto, an improved pivotstructure between each linkand the platform, comprising a sheet metal web attached to the platform,integral webs extending fromsaid web and providing a pair of ears, and ahook on the end ofthe link pivotally connected to said ears.

8. An antenna mounting device as defined-by claim 7 in which each pairof ears is provided with matching holes, and in which the hook on thelink pivotally connected thereto extends through the holesin said ears.7 1

9. man antenna mounting device for mounting an antenna on the, surfaceof buildings and other structures, including a flat metal platformhaving-a pair of oppositely projecting corners, an upright memberattached to and extending from the upper surface of the platform forholding an antenna mast, a link pivotally connected to each of saidopposite corners of the platform, said links being of adjustable lengthand adapted to extend out to the sloping sides of the roof or otherstructure, an anchor member connected to each of the projecting ends ofsaid links and havinga surface adapted to lie flat on the roof surfaceregardless of its slope and to be fastenedthereto, an i mproved'pivotstructure I between each link and the platform, comprising a sheet metalweb attached to the platform, integral webs extending from said web andproviding a pair of cars, and a hook on the end of the link pivotallyconnected to said pair of ears.

10. An antenna mounting device for mounting an antenna on the roofs ofbuildings and other structures, comprising asubstantially sduareflatrelatively heavy metal platform, an upright member attached to andextending from the upper surface of the platform for holding an antennamast, an anchor member attached to each of two diagonally oppositecorners of said platform, a link pivotally connected'by one end to eachof said anchor members, said links being-adapted to extend out to'thesloping sides of the roof or.

other structure, an anchor member connected to the projectin end of eachof said links and adapted to be attached to a roof surface regardless ofitsslope, at least one of said anchor members connected to each linkcomprising a flat sheet metal Web, a pair of integral webs extendingfrom said web and providing a pair of ears to which an end of a-link isattached by'a pivot connection. i a

11. An antenna mounting device as defined by claim 10 in which a'hook isprovided-on at least one end of each link an-dpivotally connected to thepair of ears of an anchor member; j

12. Anantenna mounting device for mounting an antenna on the roofsofbuildings and other structures, includinga relatively large'flat metalplatform adapted to rest on a supporting structure, an upright memberattached to and extending from the upper surface of the platform forholding an antenna mast, a link pivotally connected to each of twoopposite edges of the platform, said links being of adjustable lengthfor leveling said platform and adapted to extend out to the slopingsides of the roof or other structure, and an anchor member connected tothe extending ends of said links and having a surface adapted to lieflat on a roof surface regardless of its slope and to be fastenedthereto.

13. An antenna mounting device for mounting an antenna on the roofs ofbuildings and other structures, including a relatively large flat metalplatform adapted to rest upon a supporting structure, an upright memberattached to and extending from the upper surface of the platform forholding an antenna mast, a link having a hook at one end and pivotallyconnected to each of two opposite edges of the platform by an end pivot,said links being of adjustable length for leveling said platform andadapted to extend out to the sloping sides of the roof or otherstructure, and an anchor member connected to the extending end of eachof said links and having a surface adapted to lie flat on a roof surfaceregardless of its slope and to be fastened thereto.

14. An antenna mounting device for mounting an antenna on the roofs ofbuildings and other structures, including a substantially squarepivotedto each of said anchor members by an end joint, said links being adaptedto extend out to the sloping sides of a roof or other structure, and ananchor member connected to each of the extending ends of said links andhaving a surface adapted to lie flat on a roof surface regardless of itsslope and to be fastened thereto, at least one of the anchor membersconnected to each link comprising a fiat right-triangular-shaped sheetmetal web, a reinforcing web integral with said web and extending normalthereto from each of the equal edges of said web, and an ear integralwith each of said reinforcing webs adjacent the apex of said flat web,said ears extending in parallel spaced relation to each other beyondsaid flat web and at an angle of about to its long edge.

15. In an antenna mounting device for mounting an antenna on astructural member such as the roofs of buildings, or other structure, asubstantially square fiat relatively heavy metal platform member, anupright means attached to and extending from the upper surface of theplatfomn member for holding an antenna mast, a link pivotally connectedto each of two diagonally opposite corners of said platform member, saidlinks being adapted to extend out to the sloping sides of a roof orother equivalent structural member, and an anchor means pivotallyconnected to at least one end of each of said links and adapted to beattached to one of said members, said anchor means comprising a :flatsheet metal web having a pair of integral webs extending therefrom andproviding a pair of ears to which an end of a link is attached by apivot connection.

. JOHN WILSON SHUR.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,501,998 Hanford et al July 22,1924 1,530,448 Weisz Mar. 17, 1925 1,883,508 Bonday Oct. 18, 19321,932,436 Barnhill Oct. 31, 1939

